skysight-inc/HackerNews huggingface dataset:
The Ultra-Bot 3D Printer Kickstarter ends in less than 22 hours and has a full assembled unit at $899 ($99 more).

It's based on the original Makerbot Cupcake but upgraded and improved from trial and error. And there is a version with a larger build area (8x8x8"), which is the one I've pledged to receive. And with the heated build platform you can run ABS or PLA.

The thing that bothers me about the PandaBot is the lack of details on the build area size (update: 11x11x11" Print Envelope" and heated platform). Also the price isn't that great compared to other fully assembled 3D printers with the same tech. Also I'm not a fan of the base moving instead of just the print head. I can't think of any wide format printers that move the base instead of the entire head assembly/gimble.

I do love the snap together setup process and the look of the machine. It looks like something you would buy in a store and almost anyone could setup and start using immediately.
You can find the text for pretty much any popular work if you look in the proper places :-)
Can someone update the title to read: "LinkedIn Moved from Server to Client: 27 Servers Cut and Up to 20x Faster"?
-I am quite sure Mr. Jobs was always working on almost everything. I for one am very thankful.
Microsoft’s $300 million investment in Barnes & Noble is now called NOOK Media
> I personally find it hard to believe that all of LinkedIn was only running on 30 servers, and is now running on only 3.

I can believe it, if their caching strategy was garbage before and part of a massive rewrite was rethinking that. If you fail to use your caches, you'll pay for it.

I mean it's not like LinkedIn is about split-second changes, you could probably statically generate most of it and serve it with a single nginx instance.
There's no excuse for failing under that kind of load serving what is essentially a small, static text document.
That would be your RSS reader. Google Reader (which I guess most people use these days) is kinda bad about this, but you can still see it if you look hard — it shows up URI-encoded at the end of the link address when you mouse over. If you're using something else that really doesn't show it at all, you might want to see if there's a setting or something.
uTP (micro transport protocol) is a TCP implementation based on UDP. Used by the majority of BitTorrent clients. It seems to work pretty well.
It's interesting that you think TCP was a bad idea. Do you have any sources or reading material that you can share?
The Exact Match Domain Playbook: A Guide and Best Practices for EMDs
Well, to be fair, Apple allow you to access somewhat low-level APIs on iOS too, to my knowledge.
My friend Noah and his $100M lesson after being fired from Facebook
Thanks! And if you don't trust me, the code's on GitHub so you can run it yourself!
Maybe they should be counted for 3/5ths of a monthly active user.
"When you write 1111 = 4 you are sneakily using the length of the number on the page to encode the value. The length of the number on the page isn't supposed to matter. In base 10, 17 = 017 = 0017 = 00017."

I couldn't find a rigorous definition of a base system offhand. If you require that number N prepended with additive identity I, so IN = N, I agree with you. But every number in the system I described certainly has a unique representation. Also, this is incorrect:
"The other problem is that the only number you can write in base one is zero, because the only possible weight (the only integer between 0 and N-1) is 0." Try taking a look at:
http://en.wikipedia.org/wiki/Peano_arithmetic
I suppose I was unclear, I meant the value from a 3% conversion rate for a product is subjective to that product or niche.
It's not ideal, but past a certain point, as a saas operator you're caught between a rock and a hard place. The best I've been able to come up with is a "do you think this is a mistake" button, which spammers tend to not click.

Still not nice to know that I'm treating people like second-class Internet citizens. At the same time, my available time is extremely limited, so lessor or two evils - for me - it is.
She's level 68 (I think that's now 22 levels shy of the level cap), which any gamer can tell you, means she plays anything from a lot.
How to Get Revenge on HubSpot When They Start Stealing Your Engineers
I visited the site using Firefox Nightly and it said: "Powderkeg can't run on your browser. Would you mind coming back with either Google Chrome or Firefox?".
"At the beginning of the 5 minutes you shouldn’t assume anything about what I know"

This part of the question would really throw me off. If I want to explain wood working, and I can't assume you know what wood is, we are in trouble.

I think it is meant to say don't assume there is any domain specific knowledge known ahead of time. That would make more sense to me.
4 Kelvin is probably the correct number since that's the temperature of liquid helium.
While it's fun to do this, sometimes I think of the flipside. This scammer is probably trying to make a living and support his family. The company's owner though, is probably not in the need to do these unethical things. He/she should be screwed over.

I'm not advocating for his actions, just offering another point of view. Is it always correct to assume that the guy who xut you off in traffic is just an asshole, or does he really really need to be somewhere right now (eg. a hospital)?
The build area is 11x11x11"

The snap together process and self-calibration make it a much more useful experience. We've been bringing it all around town and usually have it set up and printing in minutes.

You can especially see it in our BNN interview. Liav had to set it up in minutes because he couldn't be on set any longer than that. :)

Full disclosure, I'm Kelly John Rose of Panda Robotics.
Yep, just across from OCAD and AGO. :)
Theoretically, but there are a few issues:

* You're defrauding a fraud management service, which will catch on pretty soon when zero risk transactions get flagged by you as fraud, and close the account for abuse.

* Doing what you asked is illegal in several ways, and tied to your real identity -- MinFraud costs money, and being a fraud management service, paying with a prepaid debit card, connecting over a proxy, and verifying your account with a SIP phone will all be detected and flagged -- getting an account not traceable to you is quite hard.
I'm just gonna leave this here http://throwww.com/a/1sx
Seems a little buggy... I tried to test it twice and the recipient received both sides of the email flow.

Edit:

sender: name@domain1.com

recipient: name@domain2.com

'name' was the same for both, but different domains. Recipient recevied email titled:
"test 1 wants to send you a secure message through Cycret"

After accepting, recipient received another email:
"test 2 accepted, please enter your message"

Sender never received any emails to enter the message data...
I spent a week in August in a hostel around Long Island City. It took ~10 minutes by subway to get to Midtown, another 15 or so to get anywhere else in Manhattan. The main drawback is that you can't easily walk there - you have to go across the Queensboro Bridge. Walking back to LIC late at night is much more of a hassle than walking back to say, LES or Hell's Kitchen.
Forget Fizzbuzz, we get candidates that cannot reverse a string (in their language of choice). A friend of mine just told me he uses the question "What is the hex number that comes after 'F'" as his first "weed-out" technical question. It boggles the mind.
By cutting out all of the vital clues, the interviewer is making sure that the candidate is even remotely looking for them. Too many clients will smile and nod when they don't understand something. That's far less of a telling sign than staring blankly.

When explaining things, I somewhat worry that I'm going to come off like an arrogant prick when I look someone in the eye and ask "Does that make sense?" If you don't, though, you run the risk of people not opening the floodgate of questions they have -- or, worse, you run the risk of assuming that they actually understand and that everything is golden.
I wouldn't know off the top of my head, but the concept was introduced by Harold Baayen. There are free PDFs online of his with lots of interesting quantitative techniques.
"Distributed" is not the same as "ad hoc". In virtually all workflows, whether using distributed or centralized RCS, there will be a master copy. The difference between distributed and centralized is whether that master copy is the only copy.
COM is a necessary evil when integrating with Windows, Office, Visual Studio, or any other big/old Microsoft product. That's just how it works.

The .NET framework actually does a pretty good job of hiding the complexity from you, but having done some serious integration with VS, let me say that's an abstraction leak that I wouldn't wish upon my worse enemy.
Ecommerce Privacy and Security on the Internet 2012
But that would be wrong, the server legitiamtely moved from rails to node. Just because node is JavaScript doesn't mean that it automatically runs on the client, JavaScript is a perfectly viable server language too.

The title could be improved by reflecting that this is for LinkedIn mobile, but the rails->node is correct.
I can't comprehend how some companies can spend money (and often quite a lot of it as well) on ridiculous interiors like this. I don't understand what the purpose is, maybe:

1) To impress clients?

2) To impress potential employees? Nah...

3) Simply bad taste of the company execs? Most likely.
While in some cases a company will settle a lawsuit even when claims are groundless, it's really hard for me to read that in here.

1. They don't seem to have settled with the developer in question (although I may have honestly missed that).

2. You settle by giving the quacking duck a bunch of money to shut up. You don't fire 4 people who didn't do anything wrong, or else you have just quintupled your potential legal exposure.

I'm glad they did the right thing. I'm sad the bad thing happened in the first place. I am hopeful that this kind of workplace culture will die out. I am worried that it will continue.
I understood from near the very beginning that this wasn't really about Fizzbuzz. All the way through the post, I was waiting for the author to get a real world example instead of Fizzbuzz. Yet, I got to the end of the post and realized it was already pretty long.

I think in talking about programming, we are often hindered by the fact that it is much more complicated than our brains can handle. Our only choices are to write novel length treatments of real programs or short story length posts about a toy program, or just the tiniest piece of a real program.

Which is all to say, as sick of hearing about Fizzbuzz as I am, I'm glad there are silly little examples like it that we all know. Even though it was ostensibly about interviewing, that was a much clearer introduction to monoids than most. I think it was largely because it was in reference to Fizzbuzz: something very concrete with which we're all familiar.

Too many introductions to Haskell's abstractions are too abstract. Good on the author for finding away around that.
A Founder's To-Do List
Thanks for your comments.

We've found that moving the bed horizontally helps reduce the size of motors necessary to move the head as well as simplifies the required inertial calculations to properly model the fluid flow to give a detailed, low defect object.

We're definitely aiming for a store bought look. We've violated the sacred law of demos time and again and not yet been caught. To do Canada's CNBC we dragged it out of a cab and had it set up and printing in 5 minutes with no adjustment, with an alpha prototype! On live, national TV! So it's a decently robust design.
This is what the rep-rap project is working towards.

One of the first obvious issues is how do you print motors? How to print circuit boards (with 3d printing hardware that is) is another obvious question, though that seems a bit more approachable. Wires are also another obvious one, though printing internal leads into pieces seems like a decent way of avoiding wires after you have gotten the "print a circuit board" thing down.

Less technical issues are "Why do you even want to print the entire thing?". Right now most rep-raps use many metal rods. These could be replaced with printed parts, but is there really a reason? The metal rods are cheap, easy to source, and reliable.

This all said, what rep-rap has accomplished to date is pretty impressive; they have snatched up most of the low hanging fruit and most of what is left isn't stuff that makes sense to print anyway.
Getting a Job after College
What would you be concerned about?

Giving a spontaneous monologue to someone judging you is something many people actually find quite intimidating, even though some others may find it quite natural. It's something they teach in toastmasters or improv classes.
Thanks.

The basic thought was to get it to a point that we could provide it to designers and university students with little to no engineering experience and they could start printing their 3d models right away. Hence, the heavy emphasis on self-calibration and ease-of-use.

The price range just works because we also designed it from the start to be a manufactured product, so we get an economy of scale very quickly as more people pick it up.

You can see print quality examples on ponoko, Derek swung by our office to see it close up in action yesterday: http://blog.ponoko.com/2012/10/04/pandabot-3d-printer-launch...
> lessor or two evils

I'm going to guess this is an autocorrect error.
Have you tried Powershell? It's kind of like if the Bash shell was object oriented.
Facial Analytics Take on New Expressions
Yeah, click on the big red spot in the top left corner. Go to settings. It's the first drop-down box.
It was not clear that these people accounted for the EBS first-use allocation overhead; for an append-only file format, that cost will be present for every single write.
So true.

The dilemma is similar in the iBookstore, but over there iBooks Author is at least partly to blame. What appears to be a book cover (called a "title page" in iBA) actually appears full-size on an iPad only for a few seconds when a book is opened. The title page mostly appears as a thumbnail either in the store or in a reader's library. However, it's not actually a different image; the same image is scaled down to thumbnail-size. And yet there's no indication that the title page will ever appear thumbnail-size during the design process. You have to preview the book on an iPad to see it that way.
awesome job on the look and ease of use and good luck on the project.
I think you are making good points, but you might detect, in the work of the Guerrilla Girls, a contrary view on the world of art and how women fare in it.
Not really. These are useful bits of bibliographic information, which can give you an idea of a source without having to consult it. And the kind of publisher gives an indication of reliability ranging from peer reviewed to self-published. Including an URL as well, when applicable, is of course very useful (given that it's a stable one).
That is great advice on how to hire mindreaders. While the first idea (explaining something concisely) is defensible, the second (testing if people will 'stay on topic' when deliberately asked about something else) is just crazy.
I'm sure LinkedIn could have cut servers without switching to node. Take your first, crappy implementation and rewrite it in the same language and you'll probably still see at least 10x improvement, if not 20.
I like to see this at the top of every post promoting pseudodiagnostic interview questions.
Nice! yep, the documentation is great alright, but I think I'm missing a pretty basic concept in here. I've got my html page with the form on it in my home/webapps/stripe folder. I've got the PHP package in my home directory. I've got the code from the charges tutorial, webapps/stripe. And now... I'm not sure how to know if it works. It seems to me that some variables and filepaths in the charges code ought to be changed, and I'm stalled at that point.

Does that make sense?
I thought those were rather lame. Even most of my _friends_ don't have the same interests as I do.

Plus, in my basketball playing years, that was a great example of teamwork.
I'm going to have to back you up here. I've had my own work published to their site without attribution - although it was a long long time ago - and odds are, it's this same process that got them on hot water again. I'm empathetic, but I'm certain they're playing a little dumb as to what's going on here.
Hehe, thanks, you're right :-)
Because I tend to get really nervous in interviews and consequently don't interview all that well most of the time, I try to be sensitive to people like me. I prefer to start very simple and sort of gradually increase the pressure until I can find a backing off point.
The diminishing returns of Facebook's next billion users
Nice! Purpose looks somehow similar to my https://whisperpassword.com/
Doing an interview (specifically a tech interview in this situation) and negotiating salaries after you have an offer are two completely different things. I would fall for the trap, but I can (and have) negotiate a really great deal for myself in the offer phase.
I'm not sure a tweet metric like that means much once you realize the news "Beyoncé Reveals Baby Bump" resulted in 8,868 tweets a second, which is about 10.6 million tweets every 20 minutes. Running some quick numbers, the debate averaged about 1,962 tweets a second over 90 minutes.
To be fair, Node.js isn't exactly harder to work with than Django or Rails. I myself had to choose between these about a year ago and despite the asynchronous paradigm I still found it relatively easy to start using in comparison to Rails and Django.
What else would you suggest? Sure, the guy making the call is probably desperate, but by wasting his time, you are keeping him from calling gullible people. Even if the guy making the call never costs the owner because the caller gets paid on numbers gleaned, it still ties up the owner's phone lines and costs him rent.
The amount of control you can exercise with hooks as well as the features available in repository management systems like gitolite should be more than adequate to enforce whatever policy you may dream up.
you seem to imply that algebra isn't fun. some people enjoy it....
Why not write your code using Node.js because you actually enjoy using JavaScript? Or how about the convenience of writing in one language in your stack? Or how about the simplicity provided by not having to worry about threading per process?

If you already know Python or Ruby, then ya, using Node.js would be silly. But if you have to pick one because you're equally familiar with all of the languages, then Node.js isn't a bad choice at all.
This is known by most Facebook App Developers.

What makes up the number shown on my Like button?
http://developers.facebook.com/docs/reference/plugins/like/

The number shown is the sum of:

The number of likes of this URL.
The number of shares of this URL (this includes copy/pasting a link back to Facebook).
The number of likes and comments on stories on Facebook about this URL.
The number of inbox messages containing this URL as an attachment.
YC S12 company Boosted Boards (http://www.boostedboards.com/) is a similar concept. Boosted Boards appear to be more powerful, but they are also significantly more expensive and they are remote-controlled instead of weight-sensing.
I was trying to solve secure email at a mass scale, and the fundamental problems there were 1) key management and 2) spam.

We had a good solution for key management, but there was no way we felt we could give a way for scammers to appear more legit (hey, it came encrypted) without tools to fight it. The only way we would have had to solve it was either breaking security or through solid identity management, but that doesn't really (and probably cannot) exist across the Internet and is not necessarily what people are looking for in secure email.

That was when I discovered homomorphic encryption. It really would have been the solution to our problems (that, and how do I search my existing messages). Too bad we were 10 years early (or too poor to put the researchers to work for us :).
It's an ontological problem, I think. Things started out with just 'like', but then they added comments, etc.. the modern like counter much more like Tumblr's "note" counter.
>Are you asking for a list as a counter argument? A list of ones to look at? Or a list of companies that match my personal criteria?

The last two.
Ask HN: Looking for a YC startup to test our product for free
Looking for a YC startup to test our product.
Our product is aimed at startups (pitch decks) so we'd love to use a YC startup as a case study.

Any interested please post here or feel free to email me
Could not agree more. Most stats tools are so complicated that one spends more time learning/thinking about the logistics of running an analysis ("Should I run a chi-squared or a Fisher's Exact Test? And how do I get it to run?") than about the part that demands real human creativity: thinking through the right questions to ask, biases in the sample, etc.

Disclosure/shameless-promotion, I'm the cofounder of https://www.statwing.com, an easy to use stats tool.
Goodbye, Lumia 920: The AT&T Exclusive Superphone Will Probably Flop
After reading the article, the fact that they cut servers was just one of the advantages they got from using node.js
Dwolla updates and expands API
Nothing new there. Good to hear that top level finally sobered up. I've worked at HP from 2005-2006 (roughly) as an extern, and was always fascinated by its lack of a main corporate agenda, lest a vision. Remember, back then, they even used to sell HP branded iPods (by means of a strange deal with Apple that I'll never really understand) (http://www.fscklog.com/hpipodback.JPG).
29-1 BO LIVE COMMENTARY
Ask HN: Whats the best API/Library documentation you've ever seen?
You'll note I explicitly said there are reasons to choose it. And if you choose it for those reasons, great. Just don't choose it because it will solve your Mazzerati problem. Choose it for your problems today.
Are you Kaax?

http://www.reddit.com/r/technology/comments/10xm24/i_am_call...
Which is still unfair.
They're fine. HP is probably gearing up for a big bath next year, in which they can bundle their losses/liabilities from several years in one year, and then look more profitable in years to come.

I say this because HP has the largest marketshare globally (17.2%), and has cornered the U.S. government contracts with elitebooks.

A better indicator of how well HP is doing would be their revenue relative to the industry and relative to the past years. Unlike profits, revenue numbers are harder to manipulate - and HP revenue is up 11% since 2009.
this is pretty cool, personally I'd part with 10% to only deal with vetted clients and be paid on time.

Minor point - I think the min width of your layout is too large (Chrome). Especially with the right justified navigation, I didn't even see the last two links and on the home page I've got to do some side scrolling.
Can we install this version in parallel?
Would this work just as well on Windows Server 2012?
“What the Young Man Should Know” (1933)
My thoughts exactly -- going from 30 to 3 servers is no joke and it couldn't just be because of a move to node.js
On the other hand, it would be stupid for a company with a culture like this to hire a gay black guy, they are just asking for a lawsuit.

Talk about asking for a lawsuit.

Also, behavior that is entirely appropriate for you and your friends may end up being entirely inappropriate in the workplace.
This is basically a tool to Harvest email addresses from Front-End Devs?
"Leaders have the guts to say no." Are you hiring a leader or an employee? In my experience leaders tend to make poor employees and employees tend to make poor leaders. If you're looking for leaders don't expect many of them to walk through the door and sit through an interview. They're off doing something already.